Evaluation of dynamic fracture toughness parameters of locomotive axle steel by instrumented Charpy impact test

A. P. Sorochak, P. O. Maruschak, O. P. Yasniy, T. Vuherer, S. V. Panin

Результат исследований: Материалы для журналаСтатья

2 Цитирования (Scopus)

Выдержка

The analysis of the energy of fracture of specimens from steel OSL, which is widely used for the manufacture of railway axles under shock loading, is performed. The nature and quantitative parameters of the typical stages of the processes of plastic and brittle fracture, depending on the test temperature and stiffness of the stress state at the tip of the crack-like defect, are established. It is shown that impact loading at 20°C leads to the formation of the local zone of plasticity and ductile-brittle fracture of the material. An increased stiffness of the stress state at the tip of the defect at -40°C causes brittle fracture. An approach is developed, which is based on using the size of shear lips as a quantitative parameter of fracture under normal and low temperatures, similar in its physical essence to deformation approaches of nonlinear fracture mechanics. Based on this approach and the quantitative analysis of specimen fracture zones, the physical and mechanical scheme of specimen fracture is proposed in the presence of localized plasticity and in its absence near the tip of the concentrator.

Язык оригиналаАнглийский
ЖурналFatigue and Fracture of Engineering Materials and Structures
DOI
СостояниеПринято/в печати - 2016
Опубликовано для внешнего пользованияДа

Отпечаток

Locomotives
Steel
Axles
Fracture toughness
Brittle fracture
Plasticity
Stiffness
Defects
Ductile fracture
Fracture mechanics
Plastics
Cracks
Temperature
Chemical analysis

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Цитировать

Evaluation of dynamic fracture toughness parameters of locomotive axle steel by instrumented Charpy impact test. / Sorochak, A. P.; Maruschak, P. O.; Yasniy, O. P.; Vuherer, T.; Panin, S. V.

В: Fatigue and Fracture of Engineering Materials and Structures, 2016.

Результат исследований: Материалы для журналаСтатья

@article{f8cbf6b373414be089a4ee0f2d0c555f,
title = "Evaluation of dynamic fracture toughness parameters of locomotive axle steel by instrumented Charpy impact test",
abstract = "The analysis of the energy of fracture of specimens from steel OSL, which is widely used for the manufacture of railway axles under shock loading, is performed. The nature and quantitative parameters of the typical stages of the processes of plastic and brittle fracture, depending on the test temperature and stiffness of the stress state at the tip of the crack-like defect, are established. It is shown that impact loading at 20°C leads to the formation of the local zone of plasticity and ductile-brittle fracture of the material. An increased stiffness of the stress state at the tip of the defect at -40°C causes brittle fracture. An approach is developed, which is based on using the size of shear lips as a quantitative parameter of fracture under normal and low temperatures, similar in its physical essence to deformation approaches of nonlinear fracture mechanics. Based on this approach and the quantitative analysis of specimen fracture zones, the physical and mechanical scheme of specimen fracture is proposed in the presence of localized plasticity and in its absence near the tip of the concentrator.",
keywords = "Fracture, Impact loading, Locomotive axle, Shear lips, Stages, Stress concentrator",
author = "Sorochak, {A. P.} and Maruschak, {P. O.} and Yasniy, {O. P.} and T. Vuherer and Panin, {S. V.}",
year = "2016",
doi = "10.1111/ffe.12510",
language = "English",
journal = "Fatigue and Fracture of Engineering Materials and Structures",
issn = "8756-758X",
publisher = "Wiley-Blackwell",

}

TY - JOUR

T1 - Evaluation of dynamic fracture toughness parameters of locomotive axle steel by instrumented Charpy impact test

AU - Sorochak, A. P.

AU - Maruschak, P. O.

AU - Yasniy, O. P.

AU - Vuherer, T.

AU - Panin, S. V.

PY - 2016

Y1 - 2016

N2 - The analysis of the energy of fracture of specimens from steel OSL, which is widely used for the manufacture of railway axles under shock loading, is performed. The nature and quantitative parameters of the typical stages of the processes of plastic and brittle fracture, depending on the test temperature and stiffness of the stress state at the tip of the crack-like defect, are established. It is shown that impact loading at 20°C leads to the formation of the local zone of plasticity and ductile-brittle fracture of the material. An increased stiffness of the stress state at the tip of the defect at -40°C causes brittle fracture. An approach is developed, which is based on using the size of shear lips as a quantitative parameter of fracture under normal and low temperatures, similar in its physical essence to deformation approaches of nonlinear fracture mechanics. Based on this approach and the quantitative analysis of specimen fracture zones, the physical and mechanical scheme of specimen fracture is proposed in the presence of localized plasticity and in its absence near the tip of the concentrator.

AB - The analysis of the energy of fracture of specimens from steel OSL, which is widely used for the manufacture of railway axles under shock loading, is performed. The nature and quantitative parameters of the typical stages of the processes of plastic and brittle fracture, depending on the test temperature and stiffness of the stress state at the tip of the crack-like defect, are established. It is shown that impact loading at 20°C leads to the formation of the local zone of plasticity and ductile-brittle fracture of the material. An increased stiffness of the stress state at the tip of the defect at -40°C causes brittle fracture. An approach is developed, which is based on using the size of shear lips as a quantitative parameter of fracture under normal and low temperatures, similar in its physical essence to deformation approaches of nonlinear fracture mechanics. Based on this approach and the quantitative analysis of specimen fracture zones, the physical and mechanical scheme of specimen fracture is proposed in the presence of localized plasticity and in its absence near the tip of the concentrator.

KW - Fracture

KW - Impact loading

KW - Locomotive axle

KW - Shear lips

KW - Stages

KW - Stress concentrator

UR - http://www.scopus.com/inward/record.url?scp=84981165495&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84981165495&partnerID=8YFLogxK

U2 - 10.1111/ffe.12510

DO - 10.1111/ffe.12510

M3 - Article

AN - SCOPUS:84981165495

JO - Fatigue and Fracture of Engineering Materials and Structures

JF - Fatigue and Fracture of Engineering Materials and Structures

SN - 8756-758X

ER -